title: False-positive 131I uptake by the temporomandibular joint effusion.
abstract: A 59-year-old man with papillary thyroid carcinoma underwent total thyroidectomy and received 2 separate 100-mCi doses of 131I about 5 months apart. A whole-body scan 4 days after the second dose revealed a focal uptake in the left temporomandibular joint (TMJ). The subsequent MRI examination demonstrated that the site of elevated iodine activity was caused by a TMJ effusion.
authors.affiliation: From the Departments of *Nuclear Medicine; and †Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.forename: Yifan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
authors.forename: Biao
authors.initials: B
authors.lastname: Li
mesh_terms: D002277:Carcinoma / Q000000981:diagnostic imaging* / Q000601:surgery; D002291:Carcinoma, Papillary; D005189:False Positive Reactions; D006801:Humans; D007457:Iodine Radioisotopes / Q000493:pharmacokinetics; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013704:Temporomandibular Joint / Q000000981:diagnostic imaging*; D000077273:Thyroid Cancer, Papillary; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed
chemical_list: D007457:Iodine Radioisotopes